Abstract
Hyponatremia, characterized by serum sodium <135 mEq/L, poses a significant health concern, particularly among the elderly. This case report explores chronic hyponatremia, with a focus on the Tea and Toast Syndrome, prevalent in individuals with atypical dietary habits. We present a 69-year-old female presenting with chronic hyponatremia, revealing dietary factors as key contributors. Thorough diagnostic workup ruled out common causes, emphasizing the importance of meticulous approaches. The patient's adherence to recommended dietary changes resulted in significant improvement, showcasing the pivotal role of targeted nutritional interventions. Pathogenetic mechanisms, such as reduced water-excretory capacity and solute excretion, were explored, with differentiation between AVP-mediated and non-AVP-mediated hyponatremia highlighted. The case underscores the intricate interplay between dietary habits, aging, and chronic hyponatremia, emphasizing the need for adjusted interventions in this vulnerable population. Addressing the nutritional aspects of chronic hyponatremia emerges as a crucial aspect, offering an opportunity for targeted management and improved patient care, especially in the aging demographic.